Nonperturbative models of intermittency in edge turbulence

Johan Anderson; Eun Jin Kim

doi:10.1063/1.3036932

Nonperturbative models of intermittency in edge turbulence

Johan Anderson, Eun Jin Kim

University of Sheffield

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport is used. The theoretically predicted PDF tails corroborate earlier measurements of edge transport, further confirming the strongly non-Gaussian feature of edge transport. It is found that increasing the cross-sectional spatial scale length (Lx and Ly) of the blob results in larger transport, whereas increasing the toroidal scale length (Lz) decreases the PDF. The results imply that the PDF decreases for larger blob speed vb.

Original language	English
Article number	122303
Journal	Physics of Plasmas
Volume	15
Issue number	12
DOIs	https://doi.org/10.1063/1.3036932
Publication status	Published - 4 Dec 2008
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1063/1.3036932

Cite this

@article{8414fd9e04e7460e9e97126214186be1,

title = "Nonperturbative models of intermittency in edge turbulence",

abstract = "A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport is used. The theoretically predicted PDF tails corroborate earlier measurements of edge transport, further confirming the strongly non-Gaussian feature of edge transport. It is found that increasing the cross-sectional spatial scale length (Lx and Ly) of the blob results in larger transport, whereas increasing the toroidal scale length (Lz) decreases the PDF. The results imply that the PDF decreases for larger blob speed vb.",

author = "Johan Anderson and Kim, {Eun Jin}",

year = "2008",

month = dec,

day = "4",

doi = "10.1063/1.3036932",

language = "English",

volume = "15",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "AIP Publishing",

number = "12",

}

TY - JOUR

T1 - Nonperturbative models of intermittency in edge turbulence

AU - Anderson, Johan

AU - Kim, Eun Jin

PY - 2008/12/4

Y1 - 2008/12/4

N2 - A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport is used. The theoretically predicted PDF tails corroborate earlier measurements of edge transport, further confirming the strongly non-Gaussian feature of edge transport. It is found that increasing the cross-sectional spatial scale length (Lx and Ly) of the blob results in larger transport, whereas increasing the toroidal scale length (Lz) decreases the PDF. The results imply that the PDF decreases for larger blob speed vb.

AB - A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport is used. The theoretically predicted PDF tails corroborate earlier measurements of edge transport, further confirming the strongly non-Gaussian feature of edge transport. It is found that increasing the cross-sectional spatial scale length (Lx and Ly) of the blob results in larger transport, whereas increasing the toroidal scale length (Lz) decreases the PDF. The results imply that the PDF decreases for larger blob speed vb.

UR - http://www.scopus.com/inward/record.url?scp=58149232836&partnerID=8YFLogxK

U2 - 10.1063/1.3036932

DO - 10.1063/1.3036932

M3 - Article

AN - SCOPUS:58149232836

SN - 1070-664X

VL - 15

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

M1 - 122303

ER -

Nonperturbative models of intermittency in edge turbulence

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this